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Application filed by Varhanik Jiri, Vilim Jindrich, Mikula Jaroslav, Vladimir Patak, Bohumil Ing Macel, Leo Ing KulafiledCriticalVarhanik Jiri
Priority to CS834210ApriorityCriticalpatent/CS231896B1/en
Publication of CS421083A1publicationCriticalpatent/CS421083A1/en
Publication of CS231896B1publicationCriticalpatent/CS231896B1/en